১৩৪৭১
There are 8 black, 5 red and 7 green marbles in a jar. If a marble is picked at random, what is the probability of having either a black or a green marble?
উত্তর
3/4
১৩৪৭২
A person walks 7 meters towards east, 4 meters towards north, then 4 meters towards west. What is the direct distance of the destination from the starting point?
উত্তর
5 meters
১৩৪৭৩
If the sum of two numbers is 20 and the sum of their squares is 208, then what is the product of the two numbers?
উত্তর
96
১৩৪৭৪
A fair coin is tossed 3 times. What is the probability of getting exactly two tails?
উত্তর
3/8
১৩৪৭৬
For a geometric sequence, the first term a = 5 and the common ratio r = 3. What is the sum of the first 4 terms?
উত্তর
200
১৩৪৭৭
If m is the average of the first 7 positive multiples of 4 and if M is the median of the first 7 positive multiples of 4, what is the value of M - m?
উত্তর
0
১৩৪৭৮
A clock gains (moves ahead) 20 minutes each day. How many days will it take to reach a point where the clock will indicate the correct time?
উত্তর
36 days